Immergas V2 - Page 35

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If the boiler requires it, the BUS connection can be made to the terminals as DIM BUS or 44-41, or 40-41 (see boiler instruction booklet).
On connecting the zone control Room ermostats, it is necessary to eliminate the jumpers present in the zones control unit on ter-
minal board X9.
On connecting the DIM safety thermostat, it is necessary to eliminate the jumper on X7.
On connecting the zone 2 safety thermostat, it is necessary to eliminate the jumper on terminal board X20.
Any CAR
V2
or Super CAR zone control must be connected directly to the boiler.
N.B.: for boilers other than Victrix Superior (2022), it is possible to control Zone 1 or Zone 2 as the main zone, indierently.
By default (switch 4 ON) on the manifold set as Master will be controlled as the main Zone 2.
For Victrix Superior (2022) range of boilers, regardless of how switch 4 is set (ON or OFF), Zone 1 will still be controlled as the main one.
e electrical connections of the RT inlets of the zones control unit relating to the zone controlled by the remote device, must be le
free if the DIM is connected to boilers other than Victrix Superior (2022).
N.B.: combined with the Victrix Superior (2022) range of boilers, the jumper of zone 1 (if remotely present) must be maintained (or
used for contacts of zone shutter valves).
ZONES CONTROL UNIT SETTING VALUES ON SYSTEM SPLIT INTO 1 DIRECT AND 1 MIXED ZONE
No.
SWITCH
OFF
ON
1 Homogeneous zone control Mixed zone control
2 N° 1 mixed zone (Z2) N° 2 mixed zones (Z2 and Z3)
3 MASTER board SLAVE board
4 Main zone = zone 1 Main zone = zone 2
5 Super CAR: main zone ow control Super CAR: system ow control
6 Mixed zones max. temperature = 50°C Mixed zones max. temperature = 75°C
7 Normal functioning Active testing function
8 Not used Not used
9 Mixed zones minimum temperature = 25°C Mixed zones minimum temperature = 35°C
10 Not used Not used
11 Not used Not used
12 Not used Not used
N.B.: the default settings are highlighted in bold.
STD.009285/001